WO2018116096A1 - Système et procédé de virtualisation programmable de réseaux hétérogènes à canaux communs utilisant une application associée à une connectivité double - Google Patents

Système et procédé de virtualisation programmable de réseaux hétérogènes à canaux communs utilisant une application associée à une connectivité double Download PDF

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Publication number
WO2018116096A1
WO2018116096A1 PCT/IB2017/057993 IB2017057993W WO2018116096A1 WO 2018116096 A1 WO2018116096 A1 WO 2018116096A1 IB 2017057993 W IB2017057993 W IB 2017057993W WO 2018116096 A1 WO2018116096 A1 WO 2018116096A1
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WIPO (PCT)
Prior art keywords
dual connectivity
attribute
macro cell
base station
cell base
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PCT/IB2017/057993
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English (en)
Inventor
Mehmet Oguz Sunay
Ali Ozer ERCAN
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Netsia, Inc.
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Publication of WO2018116096A1 publication Critical patent/WO2018116096A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10—Dynamic resource partitioning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/32—Hierarchical cell structures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/18—Service support devices; Network management devices

Definitions

  • the present application pertains to service group based virtualization of radio access networks that support dual connectivity.
  • HetNet heterogeneous network
  • UE user equipment
  • BS macro cell base station
  • the patent application US 2016/0112164 Al discloses methods and programs for a network node to use a secondary cell for dual connectivity.
  • the UE identifies a random access channel (RACH) in the secondary cell for dual connectivity use.
  • RACH random access channel
  • the patent discloses methods such as using a dedicated RACH preamble to avoid the contention.
  • Control / user plane separation, as well as separation in other dimensions such as the downlink / uplink separation are listed as possible scenarios.
  • the patent application US 2016/0105877 Al specifies a method and device for allocating uplink resources in a wireless communication system utilizing dual connectivity.
  • the first eNB receives buffer size information from the UE and the first eNB informs the second eNB about the uplink resource allocation.
  • the control and data planes are not separated between the eNBs.
  • the patent application US 2016/0119826 Al specifies a method and a device for re-transmitting the lost packets by the macro base station due to the release of small cell connectivity.
  • the patent application US 2016/0113058 Al specifies a method for a UE to receive multi flow data with respect to an EPS bearer in a dual connectivity wireless communication system. The separation of data and control planes are not considered in these applications.
  • Patent application WO 2015/159879 Al discloses a device and method for splitting the uplink data between the base stations in a wireless communication system using dual connectivity. The link qualities between the UE and the base stations and the base station loads are used in the computation of the splitting ratio.
  • Patent application WO 2016/021662 Al specifies a technology in a wireless communication system utilizing dual connectivity, to re-establish the RLC layers for the master and secondary base stations and to re-establish the PDCP layer when the uplink transmission direction of a split bearer changes.
  • Patent application US 2015/0334737 Al discloses a method to manage and multiplex the uplink data transmissions of a wireless terminal that is connected to two base stations under the dual connectivity technology.
  • the patent application WO 2016/006679 Al specifies a method to suppress a decline in uplink throughput in a wireless communication system that utilizes dual connectivity, by controlling the transmission powers to each base station.
  • Embodiments of the present invention are an improvement over prior art systems and methods.
  • the present invention provides a RAN controller providing programmable virtualization of co-channel heterogeneous networks utilizing a dual connectivity paradigm, wherein the RAN controller: (a) assigns a dual connectivity attribute to a group profile of each service group, the dual connectivity attribute comprising any of the following: macro cell only, small cell only, dual connectivity enabled-A, and dual connectivity enabled-B; (b) serves both a data plane and a control plane of one or more user equipment belonging to a service group having the macro cell only attribute via a macro cell base station; (c) serves both a data plane and a control plane of one or more user equipment belonging to a service group having the small cell only attribute via a small cell base station; (d) serves data plane of one or more user equipment belonging to a service group having the dual connectivity enabled-A attribute via a small cell base station, and serving control plane of one or more user equipment belonging to the service group having the dual connectivity enabled-A attribute via a macro cell base station; and (e) serves data plane of one or more user equipment belonging to
  • the present invention provides an article of manufacture comprising non-transitory computer storage medium storing computer readable program code which, when executed by a processor in a Radio Access Network (RAN) controller implements a method for programmable virtu alization of co-channel heterogeneous networks utilizing a dual connectivity paradigm, the computer storage medium comprising: (a) computer readable program code assigning a dual connectivity attribute to a group profile of each service group, the dual connectivity attribute comprising any of the following: macro cell only, small cell only, dual connectivity enabled-A, and dual connectivity enabled-B; (b) computer readable program code serving both a data plane and a control plane of one or more user equipment belonging to a service group having the macro cell only attribute via a macro cell base station; (c) computer readable program code serving both a data plane and a control plane of one or more user equipment belonging to a service group having the small cell only attribute via a small cell base station; (d) computer readable program code serving data plane of one or more user equipment belonging to a
  • the wireless resources comprises any of, or a combination of, the following: time, frequency, transmission power, code, or antenna, and wherein wireless resources that are allocated to traffic associated with the macro cell only attribute traffic are collectively x 1 % of total available wireless resources, wireless resources that are allocated to traffic associated with the dual connectivity enabled- A attribute are collectively x 2 % of total available resources, wireless resources that are allocated to traffic associated with the dual connectivity enabled-B attribute are collectively x 3 % of the total available resources, and wireless resources that are allocated to traffic associated with the small cell only attribute are collectively x 4 % of the total available resources, wherein the sum of xi, x 2 , x 3 , and x 4 is less than or equal to 100, and when a fraction c a of a collective traffic associated with the dual connectivity enabled- A attribute is control traffic and another fraction (l-c a ) of the collective traffic associated with the dual connectivity enabled-A attribute is data traffic, and when a fraction C of a collective traffic associated with the dual connectivity enabled
  • the RAN controller assigns y% of the available wireless resources to a macro cell BS, and (b) computer readable program code computing a number z as follows
  • the RAN controller assigns z% of the available wireless resources to a small cell.
  • FIG. 1A depicts a non-limiting example of the architecture of the invention.
  • FIG. IB depicts another embodiment where the control communications between the RAN controller and small cell base stations are via the macro cell base station.
  • FIG. 1C shows another embodiment where the data communications between the core network and the small cell base stations are done thorough the macro cell base station.
  • Fig. ID shows another embodiment where both the data and control communications to small cell base stations are done through the macro cell base station.
  • FIG. 2A depicts the data and control communications between the base stations and the UEs.
  • FIG. 2B shows another embodiment where some service groups' data traffic may be served by more than one small cell.
  • FIG. 3 shows the allocation of wireless resources to macro and small cell base stations in the presence of service groups that are "dual connectivity enabled.”
  • references to “one embodiment” or “an embodiment” mean that the feature being referred to is included in at least one embodiment of the invention. Further, separate references to “one embodiment” in this description do not necessarily refer to the same embodiment; however, neither are such embodiments mutually exclusive, unless so stated and except as will be readily apparent to those of ordinary skill in the art. Thus, the present invention can include any variety of combinations and/or integrations of the embodiments described herein.
  • HetNets heterogeneous networks
  • Another important direction to increase flexibility and efficiency is virtualization of wireless resources for a wireless system where multiple virtual MAC layer slices may operate simultaneously in a base station.
  • users or flows of users sharing wireless resources are grouped together so that each group may be subjected to its own set of medium access (MAC) protocols.
  • the network operator or service provider that serves a plurality of subscribers defines a service group for said plurality of subscribers and controls the corresponding virtualized MAC for the said service group.
  • the grouping of users or flows of users into service groups may be in one or more of the following ways:
  • MNO mobile network operator
  • MVNO mobile virtual network operators
  • Flows of users may be grouped according to flow profiles where a flow profile includes but is not limited to the following: flow type, flow header contents, over-the-top service provider identity.
  • the disclosed invention proposes system architectures and methods for the service group based virtualization of dual connectivity RAN.
  • the proposed invention adopts a heterogeneous network architecture where macro and small cells coexist and collaborate to enhance network capacity, where the control and user planes are separated, and the control plane is served only by the macro cell base station.
  • the invention assumes that the macro and small cells share the same frequency band.
  • the disclosed architectures and methods are applicable to either existing standards (such as LTE), technologies (such as Phantom Cell or Dual Connectivity) or any future standard or technology adopting a heterogeneous network architecture where the control and user planes are separated, and the control plane is served only by the macro cell base station.
  • the term "dual connectivity" will be used generally for such present and future HetNet architectures where control plane is served only by the macro cell base station in a heterogeneous cellular network.
  • the virtual medium access control layers for all existing service groups run on top of the physical mobile operator's medium access control layer.
  • one or more vMACs may be programmatically invoked, modified or terminated at a given time.
  • Virtualizing the MAC layer into multiple distinct slices as vMACs provides the same semantics to each network operator or service provider controlling one or more such service groups as if they were the sole operator to conduct scheduling.
  • the scheduler running on a base station decides on which users to serve at a given time, and maps the head-of-line packets of the scheduled user flows to wireless resource blocks (RBs) that are available.
  • RBs wireless resource blocks
  • a central RAN controller entity allocates the wireless resources, which may be any combination of time, frequency, transmission power, code, or antenna, to the base stations and the virtualized MAC slices of each base station.
  • the disclosed invention proposes methods to perform such allocation.
  • the related art generally specifies systems and methods for the realization of dual connectivity technology.
  • the disclosed invention presents system and methods for the service group based virtualization of the wireless resources on a dual connectivity system, where the macro and small cells share a common frequency band.
  • HetNets heterogeneous cellular networks
  • the architecture assumed by the invention is exemplified in FIG. 1A.
  • Plurality of user equipments (UEs) are served by a macro cell base station (BS) and/or small cell base stations with partially or completely overlapping service areas with the macro BS.
  • the UEs may belong to different service groups.
  • a RAN controller that is concerned with the control plane of the radio access network performs the wireless resource allocation among the base stations.
  • a service group attribute designates a service group to be "macro cell only,” “small cell only,” “dual connectivity enabled- A” or “dual connectivity enabled-B.”
  • the "macro cell only” service group is served by the macro cell base station.
  • the "small cell only” service group is served by the small cell base stations.
  • the "dual connectivity enabled-A” service group's control plane is served by macro cell base station and its data plane is served by the small cell base stations.
  • the “dual connectivity enabled-B” service group's control plane is served by macro cell base station and its data plane is served by both macro and small cell base stations.
  • a demultiplexer entity between the core network and the base stations forwards the data packets from the core network to the correct base station.
  • the control communication between the RAN controller and the base stations are direct, and can be realized by the S l-MME interface or by a newly defined interface in the LTE architecture, or any other equivalent interfaces in other current or future technologies.
  • plurality of user equipments such as (124), (125), (126), (127), (128), (129) exist. These UEs are served by the macro cell base station (BS) (101) and/or the small cell base stations (113), (114).
  • the lighter shaded area (102) depicts the service area of the macro cell BS, whereas the darker shaded areas (115), (116) depict the service areas of the small cells.
  • the service area (115) completely overlaps with the service area of the macro cell (102), whereas the service area (116) partially overlaps with it.
  • the macro cell and small cells are assumed to share a common frequency band.
  • UEs belonging to four service groups which are depicted by using different icons for the UEs, exist.
  • the UE (124) belongs to one service group
  • UEs (125) and (128) belong to another service group
  • (126) and (129) belong to another service group
  • the UE (127) belongs to yet another service group.
  • a UE may belong to more than one service group, or a UE may belong to different service groups at different times or locations.
  • there may not be any distinction of the UEs based on the service groups which is equivalent to all UEs belonging to the same service group.
  • the invention's service group definition covers all of these cases.
  • the entity called the RAN controller (130) is concerned with the control plane of the radio access network. It's logically shown with the box (130) but may be physically realized in the core network, or somewhere else, such as the cloud. It may also be physically realized in a distributed fashion; however, its functionality is logically centralized.
  • the dashed lines (171), (172), (173) represent the control communications between the RAN controller and the macro and small base stations.
  • the RAN controller has access to the service group attributes.
  • the collection of attributes for a service group is called "group profile," and may consist of properties such as, and not limited to, the user equipments and base stations for which the profile is defined for, the RAN control algorithms (e.g., admission control, scheduling, handover, etc.) used for said service group, percentage of wireless resources allocated to said service group, the dual connectivity mode of the service group, etc.
  • the RAN controller specifies network virtualization, i.e., allocation and isolation of the network resources, for the service groups at all BSs. Additionally, the RAN controller periodically collects information from the BSs and UEs such as link qualities, signal strength/quality indicators, instantaneous traffic loads and rates, etc.
  • the invention specifies system and methods for programmable virtualization of co- channel heterogeneous networks utilizing the dual connectivity paradigm.
  • the term "dual connectivity” is used in the invention to denote the assumed architecture explained herein, and is not limited to the dual connectivity technology in 3 GPP specification, but implies any such present or future HetNet architecture where control and data planes are separate and control plane is served by the macro cell base station.
  • the group profile of each service group contains a "dual connectivity" attribute.
  • the values that this attribute can take are "macro cell only,” “small cell only,” “dual connectivity enabled-A,” and “dual connectivity enabled-B.”
  • other definitions with equivalent meanings might be used for the attribute values.
  • the UE (126) can only be served by the small cell BS (114), thus, it belongs to a service group with the dual connectivity attribute being "small cell only.”
  • the UE (125) can only be served by the macro cell BS (101), thus, it belongs to a service group with the dual connectivity attribute being "macro cell only.”
  • the UEs (124), (127), (128) and (129) are within the service areas of both the small cell BS (113) and the macro cell BS (101). Thus, they may belong to service groups with any dual connectivity attribute.
  • the UE (127) belongs to a service group with the dual connectivity attribute being "dual connectivity enabled-A”
  • the UE (124) belongs to a service group with the dual connectivity attribute being "dual connectivity enabled-B”
  • the UE (128) belongs to a service group with the dual connectivity attribute being "macro cell only”
  • the UE (129) belongs to a service group with the dual connectivity attribute being "small cell only.”
  • Fig. 1A the solid lines denote the data communications.
  • Data flows from the internet (151) or other networks (152) go through the core network (141).
  • An example for such an entity can be the EPC of LTE, however the invention is not limited to any standard, and is also applicable to any similar architecture of future standards.
  • the flows arrive at a demultiplexer entity (142). This entity can be implemented as part of the core network.
  • the demultiplexer For each flow, according to the dual connectivity attribute of the service group of the UE that the said flow is destined to, the demultiplexer sends the incoming data packets to a macro or small cell base station.
  • a "macro cell only” UE such as (125) or (128)
  • all packets of the flows destined to said UE are sent to the macro base station (101).
  • a "small cell only” UE such as (129)
  • all packets of the flows destined to said UE are sent to the small cell base station serving said UE (113).
  • all packets of the flows destined to UE (126) are sent to the small cell base station (114).
  • a UE that is "dual connectivity enabled- A" or “dual connectivity enabled-B” all packets of the flows destined to said UE are sent to either only to its serving small cell BS (113) or to both its serving small and macro cell BSs (113), (101).
  • the configuration of the split of the flows is specified by the RAN controller. If more than one small cell is serving a UE (Fig. 2B), the data packets might be sent to multiple small cells. The load balancing between the small cells is also governed by the RAN controller in this case.
  • the data connections (161) and (162) can be realized by the S l-U interface in the LTE architecture, or any other equivalent interfaces in other current or future technologies.
  • the control connections (171), (172) and (173) can be realized by the S l-MME interface or by a newly defined interface in the LTE architecture, or any other equivalent interfaces in other current or future technologies.
  • the control communications between the small cell base stations and the RAN controller is not direct, however, through the macro cell base station.
  • the macro cell BS to small cell BS control communication can be realized by the X2-C interface or by a newly defined interface in the LTE architecture, or any other equivalent interfaces in other current or future technologies.
  • the RAN controller (131) communicates to small cell BS (117) through the control plane connections (174) and (175).
  • the connection (174) can be realized by the S l-MME interface or by a newly defined interface in the LTE architecture, or any other equivalent interfaces in other current or future technologies.
  • the connection (175) can be realized by the X2-C interface or by a newly defined interface in the LTE architecture, or any other equivalent interfaces in other current or future technologies.
  • the data communications between the core network (142) and the small cell base stations (118), (119) are done thorough the macro cell base station (102).
  • the macro cell BS to small cell BS data communication can be realized by the X2-U interface or by a newly defined interface in the LTE architecture, or any other equivalent interfaces in other current or future technologies.
  • the demultiplexer functionality is implemented within the macro cell base station.
  • the connection (163) can be realized by the S l-U interface in the LTE architecture, or any other equivalent interfaces in other current or future technologies.
  • the connection (164) can be realized by the X2-U interface or by a newly defined interface in the LTE architecture, or any other equivalent interfaces in other current or future technologies.
  • both the data and control communications to small cell base stations are done through the macro cell base station.
  • the connection (176) can be realized by the S l-MME interface or by a newly defined interface in the LTE architecture, or any other equivalent interfaces in other current or future technologies.
  • the connection (177) can be realized by the X2-C interface or by a newly defined interface in the LTE architecture, or any other equivalent interfaces in other current or future technologies.
  • the connection (165) can be realized by the S l-U interface in the LTE architecture, or any other equivalent interfaces in other current or future technologies.
  • the connection (166) can be realized by the X2-U interface or by a newly defined interface in the LTE architecture, or any other equivalent interfaces in other current or future technologies.
  • Fig. 2A depicts the data and control communications between the base stations and the UEs. While the control communications of "macro cell only" or dual connectivity enabled UEs are served by the macro cell (as shown by the dashed lines), depending on the dual connectivity attribute of a service group, the data traffic of the UEs belonging to said service group may be served by the macro cell BS, small cell BS, or both (as shown by the solid lines).
  • the data packets of UEs that belong to a "dual connectivity enabled-B" service group, such as (205), are served by both the macro cell base station (201) and its serving small cell base station (202). This is shown by the connections (216) and (217).
  • the split of the data between the macro and small cells is governed by the RAN controller (130 in Fig. l)
  • the control plane of the UEs that belong to a "dual connectivity enabled-B" service group are served by the macro cell base station (201). This is shown by the connection (215).
  • the data packets of "dual connectivity enabled-A” (222), “dual connectivity enabled-B” (223), and “small cell only” (224) UEs may be served by more than one small cell. These are shown by the connections (242), (243), (246), (247), (249), (250).
  • the data split between the macro cell and the small cells are governed by the RAN controller (130 in Fig.l).
  • the RAN controller coordinates the wireless resource allocation to base stations as explained in Fig. 3.
  • the wireless resources may be any combination of time, frequency, transmission power, code, or antenna.
  • flows labeled ml through ma are destined to UEs that belong to service profiles that are "macro cell only” (301).
  • Flows labeled dl through db are destined to UEs that belong to service profiles that are "dual connectivity enabled-A" (302).
  • Flows labeled el through ec are destined to UEs that belong to service profiles that are "dual connectivity enabled-B" (303).
  • Flows labeled si through sd are destined to UEs that belong to service profiles that are "small cell only” (304).
  • These flows do not have to be actual flows as long as they are representative of the total amount of traffic that need to be delivered to the UEs. Some of these flows may represent only data traffic, some of them may represent only control traffic, and some of them may represent a combination of data and control traffic.
  • the wireless resources that are allocated to the "macro cell only” traffic are collectively xl % of the total resources (311)
  • the wireless resources that are allocated to the "dual connectivity enabled-A” traffic are collectively x2 % of the total resources (312)
  • the wireless resources that are allocated to the "dual connectivity enabled-B” traffic are collectively x3 % of the total resources (313)
  • the wireless resources that are allocated to the "small cell only” traffic are collectively x4 % of the total resources (314).
  • summation of xl, x2, x3, and x4 must be less than or equal to 100. The case when the sum is less than 100 considers the case when all of the wireless resources are not used but left empty by the RAN controller.
  • any of the xl, x2, x3, and x4 values may be zero, if no UEs exist belonging to the associated service group.
  • the RAN controller is physically realized close to the data path, such as close to the serving gateway of the core network, or with the demultiplexer entity, or with the macro base station, then this information is available to the RAN controller in real time. Otherwise, a low latency communication between the RAN controller and the demultiplexer entity or functionality is needed for the RAN controller to acquire this information in real time for each flow. Moreover, assume that a fraction p of the collective data traffic destined to "dual connectivity enabled-B" UEs are to be served by the macro cell BS. The p value also changes every scheduling interval. However, since the RAN controller decides on the data split between the macro and small cells, the value of p is readily available to the RAN controller in real time.
  • the amount of wireless resources allocated to the macro cell base station should include all the resources allocated to "macro cell only" flows, enough resources to be able to serve the control traffic of "dual connectivity enabled- A" and “dual connectivity enabled-B” flows, and resources to be able to serve the portion of the "dual connectivity enabled-B" data traffic assigned to be served by the macro cell.
  • a number z is computed as follows
  • ⁇ can be implemented as software processes that are specified as a set of instructions recorded on a computer readable storage medium (also referred to as computer readable medium).
  • a computer readable storage medium also referred to as computer readable medium.
  • processing unit(s) e.g., one or more processors, cores of processors, or other processing units
  • Embodiments within the scope of the present disclosure may also include tangible and/or non-transitory computer-readable storage media for carrying or having computer-executable instructions or data structures stored thereon.
  • Such non-transitory computer-readable storage media can be any available media that can be accessed by a general purpose or special purpose computer, including the functional design of any special purpose processor.
  • non-transitory computer- readable media can include flash memory, RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to carry or store desired program code means in the form of computer- executable instructions, data structures, or processor chip design.
  • the computer readable media does not include carrier waves and electronic signals passing wirelessly or over wired connections.
  • Computer-executable instructions include, for example, instructions and data which cause a general purpose computer, special purpose computer, or special purpose processing device to perform a certain function or group of functions.
  • Computer-executable instructions also include program modules that are executed by computers in stand-alone or network environments.
  • program modules include routines, programs, components, data structures, objects, and the functions inherent in the design of special-purpose processors, etc. that perform particular tasks or implement particular abstract data types.
  • Computer- executable instructions, associated data structures, and program modules represent examples of the program code means for executing steps of the methods disclosed herein. The particular sequence of such executable instructions or associated data structures represents examples of corresponding acts for implementing the functions described in such steps.
  • processors suitable for the execution of a computer program include, by way of example, both general and special purpose microprocessors, and any one or more processors of any kind of digital computer.
  • a processor will receive instructions and data from a read-only memory or a random access memory or both.
  • the essential elements of a computer are a processor for performing or executing instructions and one or more memory devices for storing instructions and data.
  • a computer will also include, or be operatively coupled to receive data from or transfer data to, or both, one or more mass storage devices for storing data, e.g., magnetic, magneto-optical disks, or optical disks.
  • the term "software” is meant to include firmware residing in read-only memory or applications stored in magnetic storage or flash storage, for example, a solid-state drive, which can be read into memory for processing by a processor.
  • multiple software technologies can be implemented as sub-parts of a larger program while remaining distinct software technologies.
  • multiple software technologies can also be implemented as separate programs.
  • any combination of separate programs that together implement a software technology described here is within the scope of the subject technology.
  • the software programs when installed to operate on one or more electronic systems, define one or more specific machine implementations that execute and perform the operations of the software programs.
  • a computer program (also known as a program, software, software application, script, or code) can be written in any form of programming language, including compiled or interpreted languages, declarative or procedural languages, and it can be deployed in any form, including as a stand-alone program or as a module, component, subroutine, object, or other unit suitable for use in a computing environment.
  • a computer program may, but need not, correspond to a file in a file system.
  • a program can be stored in a portion of a file that holds other programs or data (e.g., one or more scripts stored in a markup language document), in a single file dedicated to the program in question, or in multiple coordinated files (e.g., files that store one or more modules, sub programs, or portions of code).
  • a computer program can be deployed to be executed on one computer or on multiple computers that are located at one site or distributed across multiple sites and interconnected by a communication network.
  • Some implementations include electronic components, for example microprocessors, storage and memory that store computer program instructions in a machine-readable or computer-readable medium (alternatively referred to as computer-readable storage media, machine-readable media, or machine -readable storage media).
  • computer-readable media include RAM, ROM, read-only compact discs (CD-ROM), recordable compact discs (CD-R), rewritable compact discs (CD-RW), read-only digital versatile discs (e.g., DVD-ROM, dual-layer DVD-ROM), a variety of recordable/rewritable DVDs (e.g., DVD-RAM, DVD-RW, DVD+RW, etc.), flash memory (e.g., SD cards, mini-SD cards, micro-SD cards, etc.), magnetic or solid state hard drives, read-only and recordable Blu-Ray® discs, ultra density optical discs, any other optical or magnetic media, and floppy disks.
  • CD-ROM compact discs
  • CD-R recordable compact discs
  • the computer-readable media can store a computer program that is executable by at least one processing unit and includes sets of instructions for performing various operations.
  • Examples of computer programs or computer code include machine code, for example is produced by a compiler, and files including higher-level code that are executed by a computer, an electronic component, or a microprocessor using an interpreter.
  • ASICs application specific integrated circuits
  • FPGAs field programmable gate arrays
  • integrated circuits execute instructions that are stored on the circuit itself.
  • computer readable medium and “computer readable media” are entirely restricted to tangible, physical objects that store information in a form that is readable by a computer. These terms exclude any wireless signals, wired download signals, and any other ephemeral signals. ⁇

Abstract

L'un quelconque des attributs de connectivité double suivants est attribué à un profil de groupe de chaque groupe de services : (1) macrocellule uniquement (desservant à la fois des plans de données/commande par l'intermédiaire d'une station de base de macrocellule); (2) petite cellule uniquement (desservant des plans de données/commande par l'intermédiaire d'une station de base de petite cellule); (3) connectivité double activée A (desservant un plan de données d'UE par l'intermédiaire d'une station de base de petite cellule, et desservant un plan de commande par l'intermédiaire d'une station de base de macrocellule); et (4) double connectivité activée B (desservant un plan de données à la fois par l'intermédiaire d'une station de base de macrocellule et par l'intermédiaire d'une station de base de petite cellule, et desservant un plan de commande par l'intermédiaire d'une station de base de macrocellule).
PCT/IB2017/057993 2016-12-19 2017-12-15 Système et procédé de virtualisation programmable de réseaux hétérogènes à canaux communs utilisant une application associée à une connectivité double WO2018116096A1 (fr)

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6898448B2 (ja) 2016-12-09 2021-07-07 テレフオンアクチーボラゲット エルエム エリクソン（パブル） 分散マッシブｍｉｍｏのための改良されたアンテナ装置
US10333842B2 (en) * 2017-04-24 2019-06-25 The Boeing Company System and method for federated network traffic processing
WO2019030077A1 (fr) * 2017-08-10 2019-02-14 Sony Corporation Procédé de communications sans fil, dispositif de communications, et infrastructure de réseau sans fil
WO2019076513A1 (fr) 2017-10-17 2019-04-25 Telefonaktiebolaget Lm Ericsson (Publ) Synchronisation mimo distribuée
EP3714551A1 (fr) 2017-11-21 2020-09-30 Telefonaktiebolaget LM Ericsson (publ) Agencement d'antenne amélioré pour mimo massif distribué
US11329699B2 (en) * 2018-10-16 2022-05-10 Telefonaktiebolaget Lm Ericsson (Publ) Disturbance mitigation
US11777619B2 (en) 2020-02-10 2023-10-03 Telefonaktiebolaget Lm Ericsson (Publ) Dielectric waveguide signal transfer function compensation

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140342748A1 (en) * 2013-05-16 2014-11-20 Alcatel-Lucent Usa Inc. Methods and systems for scheduling communications in a co-channel network
WO2015159879A1 (fr) 2014-04-18 2015-10-22 株式会社Ｎｔｔドコモ Dispositif d'utilisateur, station de base, procédé de calcul de rapport de division de données de liaison montante et procédé de fourniture de rapport de division de données de liaison montante
US20150334737A1 (en) 2013-11-01 2015-11-19 Telefonaktiebolaget L M Ericsson (Publ) Radio Base Station, Wireless Terminal, Methods Performed Therein, Computer Program, and Computer-Readable Storage Medium
US20150341977A1 (en) 2013-01-18 2015-11-26 Kyocera Corporation Mobile communication system, user terminal, and base station
WO2016006679A1 (fr) 2014-07-11 2016-01-14 株式会社Ｎｔｔドコモ Terminal utilisateur, procédé de communication sans fil et système de communication sans fil
WO2016021662A1 (fr) 2014-08-06 2016-02-11 株式会社Ｎｔｔドコモ Équipement d'utilisateur, et station de base
US20160105877A1 (en) 2013-05-15 2016-04-14 Lg Electronics Inc. Method for allocating uplink resources in a wireless communication system and a device therefor
US20160112164A1 (en) 2013-05-10 2016-04-21 Alcatel Lucent Dual connectivity
US20160113058A1 (en) 2013-05-10 2016-04-21 Pantech Inc. Method and apparatus for sequential forwarding considering multi-flow in dual connectivity system
US20160119826A1 (en) 2013-05-10 2016-04-28 Pantech Inc. Method and device for transmitting data in wireless communication system supporting dual connectivity

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10237810B2 (en) * 2014-01-29 2019-03-19 Samsung Electronics Co., Ltd. Method and apparatus for processing system information in communication system
CN106105308B (zh) * 2014-03-20 2019-12-20 富士通株式会社 无线通信装置及无线通信方法
EP3576487B1 (fr) * 2014-07-09 2022-04-13 Sony Group Corporation Appareil pour routage dans un réseau
EP3241387B1 (fr) * 2014-12-30 2021-04-28 British Telecommunications public limited company Resélection de cellules
US20160285534A1 (en) * 2015-03-27 2016-09-29 Alcatel-Lucent Usa Inc. Channel Estimation Techniques for FDD MIMO Systems
US10045360B2 (en) * 2016-04-15 2018-08-07 Mediatek Inc. Macro-assisted multi-connectivity scheme in multi-RAT cellular systems

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150341977A1 (en) 2013-01-18 2015-11-26 Kyocera Corporation Mobile communication system, user terminal, and base station
US20160112164A1 (en) 2013-05-10 2016-04-21 Alcatel Lucent Dual connectivity
US20160113058A1 (en) 2013-05-10 2016-04-21 Pantech Inc. Method and apparatus for sequential forwarding considering multi-flow in dual connectivity system
US20160119826A1 (en) 2013-05-10 2016-04-28 Pantech Inc. Method and device for transmitting data in wireless communication system supporting dual connectivity
US20160105877A1 (en) 2013-05-15 2016-04-14 Lg Electronics Inc. Method for allocating uplink resources in a wireless communication system and a device therefor
US20140342748A1 (en) * 2013-05-16 2014-11-20 Alcatel-Lucent Usa Inc. Methods and systems for scheduling communications in a co-channel network
US20150334737A1 (en) 2013-11-01 2015-11-19 Telefonaktiebolaget L M Ericsson (Publ) Radio Base Station, Wireless Terminal, Methods Performed Therein, Computer Program, and Computer-Readable Storage Medium
WO2015159879A1 (fr) 2014-04-18 2015-10-22 株式会社Ｎｔｔドコモ Dispositif d'utilisateur, station de base, procédé de calcul de rapport de division de données de liaison montante et procédé de fourniture de rapport de division de données de liaison montante
WO2016006679A1 (fr) 2014-07-11 2016-01-14 株式会社Ｎｔｔドコモ Terminal utilisateur, procédé de communication sans fil et système de communication sans fil
WO2016021662A1 (fr) 2014-08-06 2016-02-11 株式会社Ｎｔｔドコモ Équipement d'utilisateur, et station de base

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
TAKEHIRO NAKAMURA ET AL: "5G Radio Access: Requirements, Concept and Experimental Trials", IEICE TRANSACTIONS ON COMMUNICATIONS, 1 January 2015 (2015-01-01), pages 1397 - 1406, XP055452318, Retrieved from the Internet <URL:https://www.nttdocomo.co.jp/english/binary/pdf/corporate/technology/whitepaper_5g/DOCOMO_5G_White_Paper.pdf> DOI: 10.1587/transcom.E98.B.1397 *
WANG HUA ET AL: "Dual connectivity for LTE-advanced heterogeneous networks", WIRELESS NETWORKS, ACM, 2 PENN PLAZA, SUITE 701 - NEW YORK USA, vol. 22, no. 4, 7 August 2015 (2015-08-07), pages 1315 - 1328, XP035935550, ISSN: 1022-0038, [retrieved on 20150807], DOI: 10.1007/S11276-015-1037-6 *

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